Electric clock.



PATENTED JUNE 20, 1905.

I. KITSEE.

ELECTRIC CLOCK.

APPLICATION FILED NOV. 17,1902.

. Qvwewtoz witmooeo Patented June 20, 1905.

PATENT ()EFICE.

ISIDOR KITSEE, OF PHILADELPHIA, PENNSYLVANIA.

ELECTRIC CLOCK.

SPECIFICATION forming part of Letters Patent N0. 793,036, dated June 20, 1905.

Application filed November 17, 1902. $erial No. 131,729.

To (all, Hill/("Tb it may concern:

Be it known that I, ISIDOR KITSEE, of the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Electric Clocks, (Case No. 138,) of which the following is a specification.

My invention relates to an improvement in electric clocks. Its object is to produce a simple and efficient mechanism useful for electric clocks.

Referring to the drawing, which represents in diagrammaticalview the clock mechanism and electrical connections thereto, A is the main disk, provided with the escapementteeth A.

B is a bar or lever pivoted at the center of the disk A, but in a manner so as to be revolubly secured thereto.

C is a weight adjustable along the bar or lever and adapted to be secured thereto with the aid of any of the holes B.

D is a springpawl pivoted to the bar or lever and held in engagement with the teeth A of the disk A.

E is an escapement attached, preferably, to the pendulum F.

G is a finger pivoted to a stationary point G, and the end G of said finger lies in the same vertical plane as the bar or lever B and is adapted to contact said bar and push the same upward when the opposite end of the finger is depressed. To this opposite end of the finger is attached the armature G adapted to be attracted by the magnet II. I is a second armature arranged upon the other end of the magnet. This armature when raised is adapted to contact with the point J The operation of the device is as follows: When the bar B is in the position as is shown by the full lines, the weight C will operate to rotate the disk A, and therefore the clockwork will be actuated. hen the bar B is dropped to the position as shown by the dotted lines, it will come in contact with the contact-point K, connected through wire 4 with one terminal of the magnet II, the other terminal of which is connected through wire 3 l to one pole of the battery M, the other pole of which is connectedthrough wire 1 with the bar or lever B. Thus a circuit is established which. will energize the magnet H, and therefore attract the armature G as well as the armature I, simultaneously toward the magnet. The attracting of the armature G will cause the finger G to raise the barB, and thus break the contact with the contact-point K; but before this has occurred the armature Ihas made contact with the contact J, and as this contact is connected through wire 5 to wire 4, which is one terminal of the electromagnet II, and as the armature I is connected through wire 6 with one pole of the battery M, the other pole of which is connected to the second terminal of the electromagnet II, it is obvious that a second circuit will be established, including the electromagnet, and this magnet will remain, therefore, energized no matter if the contact of the lever or bar B with the contact-point K is broken, and the magnet will remain energized till the lever or bar B has been returned to its highest position, at which point this bar contacts with the point L, thereby establishing a circuit consisting of the bar B, wire 1, battery M, wire 2, resistance N, and contact L. The electromagnet H should be, as compared with the circuit just mentioned, of greater resistance value, and it is even suggested that this resistance value should be in proportion as about five to one, so that if the resistance value of the electromagnet is fifty ohms the resistance of the circuit mentioned shall be only about ten ohms. The current, therefore, which formerly flowed through the coil of electromagnet H will be diverted and will flow to its greater extent. to the circuit containing the resistance N. The clectroniagnet, therefore, will be denergized, the armature I will fall away from the contact J, and this last-established circuit will remain closed till the weighted bar or lever B has been depressed. by its own weight. The magnet II will remain demagnetized till the bar or lever B is again dropped into contact with the contact K. Thus it will be seen that the whole action of the mechanism is in its entirety automatic, and as the quicker or slower movement of the disk A can be regulated through the different positions of the weight C it is obvious that the mechanism just described is capable of not only registering time, but registering the same correctly.

The disk A is prevented from making a retrograde movement by the pawl D.

It is obvious that different parts of this mechanism may be varied in construction and arrangement to suit requirements with out departing from the scope of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A11 electric-clock mechanism consisting of a toothed disk or wheel, a weighted lever adapted to be raised and to actuate, through gravity, the toothed disk or wheel, an escapement in operative relation to said toothed wheel, an electromagnet adapted to be energizcd through the electrical connection of the lever with an electric contact, an armature for said electromagnet, the armature of said electromagnet adapted to operate as a lever in a manner so as to engage the weighted lever when the electromagnet is energized, a second armature for said electromagnet adapted to close a circuit including the coil of said electromagnet and an additional electric contact adapted to come in contact with the weighted lever when said lever is in its highest position.

2. An electric clock embracing the following instrumentalities: a toothed wheel, a pendulum, a lever, an electric circuit including a source of current, one terminal of said circuit connected with the fixed end of said lever, the second terminal of said circuit placed so as to coact with said lever when in a predetermined position, an electromagnet one terminal of which is connected to said circuit, and the second terminal of which is placed so as to coact with said lever when in a second predetermined position, means in operative relation to said electromagnet to move said lever from one position to another position, and means independent of said lever to keep active said electromagnet.

3. 'An electric clock embracing the following instrumentalities: a toothed wheel, means dependent on the force of gravity to make operative said toothed wheel, an electric circuit and an electromagnetic device for said circuit, said gravity means adapted to close said electric circuit including said electromagnet if in one position and adapted to close said circuit outside of said electromagnot if in a second position in combination with means to keep active said electromagnet independent of the position of said gravity means.

4. An electric clock embracing the follow ing instrumentalities: means dependent on the force of gravity to make operative said clock, electromagnetic means adapted to re move said gravity means from one position to another, means to make inoperative said electromagnetic means, and means to keep active said electromagnetic means independent of said gravity means. a

5. An electric-clock movement, mechanical means to make said movement operative, an electric circuit, said circuit connected electrically with one terminal to the mechanical means and connected electrically with the second terminal to a contact-point, a branch circuit including an electromagnet connected with one terminal to the firstnamed circuit and with the second terminal to a second contact-point, said electromagnet provided with two, armatures, a subbranch circuit connected electrically with one of the armatures of said electromagnet and with a third contact-point respectively, and means to make operative one or the other of said armatures or one or the other of said contact-points in accordance'with the position of the mechanical means.

6. In an electric-clock movement a main circuit containing a generator of electricity, a circuit branching from said main circuit and containing an electromagnet, a second subcircuit branching from the first subcircuit and the main circuit respectively and including the armature of said electromagnet, said main circuit of a resistance value higher than the first or second of said subcircuits.

7. In an electric clock an electromagnet provided with an armature adapted to close an electric circuit including the coil of said electromagnet, and provided with a second armature adapted when in an operative po sition to remove the means operating the clock from one position to a second position, said means adapted to close one branch of a circuit when in one position and to close a second branch of said circuit when in a second position.

8 In an electric-clock movement, mechanical means to make operative said movement, said mechanical means forming part of a circuit containing a generator of electricity, said circuit provided with a branch circuit containing an electromagnet and said circuit of a resistance value higher than the resistance value of the branch circuit containing the electromagnet.

9. In combination withaclockwork adapted to be made operative through mechanical means, electromagnetic means made operative as soon as said mechanical means have assumed one predetermined position and made inoperative as soon as said mechanical means have assumed a second predetermined position, the electromagnetic means consisting of an electromagnetic device protion of said mechanical means, and means independent of both positions to keep operative said electromagnetic means during the progress of said mechanical means from one position to a second position.

In testimony whereof I hereby sign my name, in the presence of two subscribing Witnesses, this 10th day of September, A. D.

ISIDOR KITSEE. Vitnesses:

EDITH R. STILLEY, AL. SEcUEs. 

